Characterization of Microbial Community and Phosphorus-releasing Bacteria in the Sediments of a Eutrophic Shallow Lake,Eastern China
To understand the interactions between phosphorus (P) and microbial community and characterize some P-releasing bacteria, ten representative sediment samples were collected in a small eutrophic lake and a clean wetland. Total P concentration in wetland sediment was much lower than that in the lake, while NaOHextractable P was relatively high in wetland which indicated high releasable risk. According to standards Measurements and Testing Program of the European commission (SMT protocol), P in lake rooted in agricultural runoff and P in wetland was mainly of anthropogenic origin, and the microbial communities were significantly different between these two kinds of sediment. Enumeration of inorganic P-releasing bacteria (IPB) and organic P-releasing bacteria (OPB) showed these groups were not very rich in the ecosystem. Molecular identification indicated there were various kinds of bacteria involved in the P transition cycle, but the P release abilities of different bacteria were dissimilar.
Phosphorus (P) Sediment Distribution P-releasing bacteria 16srDNA
Yichao Qian Yingxu Chen Jiyan Shi Liping Lou
Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety,Hangzhou 31002 Ministry of Agriculture Key Laboratory of Non-point Source Pollution Control,Hangzhou 310029,China Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety,Hangzhou 31002
国际会议
杭州
英文
328-330
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）